Add colon to notification-edit-talk-page-email-batch-body2

To clarify the sentence is completed by the following line.
<https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Notification-edit-talk-page-email-batch-body2/en>

Change-Id: Ib96f4ee55819365a92949ea0b7afb4fd234a12b4
Merge "Add colon to notification-edit-talk-page-email-batch-body2"